/*
 * Copyright 2020-2023 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *       https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package cn.javaer.jany.model;

/**
 * @author cn-src
 */
public interface TreeHandler<E> {

    @SuppressWarnings("rawtypes")
    TreeHandler EMPTY = (info) -> {};

    /**
     * Empty tree handler.
     *
     * @param <E> the type parameter
     *
     * @return the tree handler
     */
    @SuppressWarnings("unchecked")
    static <E> TreeHandler<E> empty() {
        return EMPTY;
    }

    /**
     * TreeNode 自定义处理.
     *
     * @param treeInfo the tree info
     */
    void apply(TreeInfo<E> treeInfo);
}